LendingQ allows you to specify multiple locations and item types, and then add items to your stock.
Non-admin users can fill out a Hold on an item from a specific item type and location.
This creates a Check Out list, ordered by date.
Users can be marked as contacted, and items have a time to lend. Overdue items are listed.
The Check In list allows non-admin users to check devices back in, and even mark them as lost, stolen or broken. Admin users can reenable these items once fixed or replaced.